By mapping different regions of an image with microgratings of varying period and amplitude, color and brightness can be controlled. This is a collage of photos of a single image taken at multiple viewing angles. The image is formed with 3 different period surface gratings and 3 different grating amplitudes.
(Film fabrication, optical setup, and images by Jonas Strobelt and Max Leven, with assistance from Daniel Stolz, Matthew Van Soelen, Luke Kurlandski, and Robert Conwell. All work performed in McGee lab at TCNJ)